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eSense Muscle Pro Edition (2-Channel EMG Biofeedback with Web & Mobile App)

eSense Muscle Pro Edition (2-Channel EMG Biofeedback with Web & Mobile App)

from € 990,00

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from € 990,00

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The eSense Muscle can measure and evaluate electromyographic activity and transmit it to a terminal device via Bluetooth®.

Price scale:

1 device $ 1690 / € 1690 per device (special price)
2 – 4 devices $ 1490 / € 1490 per device
from 5 devices $ 990 / € 990 per device
SKU: MFB-eSM-PRO Tags: , ,

Description

General information about EMG (electromyography) biofeedback training

The eSense Muscle can measure and train electromyographic muscle activity and transmit it to your computer/smartphone/tablet via Bluetooth®. 

The eSense Muscle is a powerful tool that can measure and train electromyographic biofeedback of muscle activity, transmitting data to your computer, smartphone, or tablet via Bluetooth® for convenient monitoring. 

The musculature of the human body plays an essential role, being the largest energy consumer and accounting for approximately 70-80% of body weight. Muscle contraction generates electrical potential shifts along the fibers of striated muscles, which can be measured at the skin’s surface. This form of measurement, known as surface electromyography, results in an electromyogram, a valuable tool for both performance tracking and biofeedback training. 

Transverse striated muscles, controlled by the somatic nervous system, are subject to voluntary control. Every intentional muscle contraction can be captured in an electromyogram. When EMG electrodes are placed on the skin, any increase in muscle tension immediately reflects an enhanced signal in the EMG. 

In addition to voluntary actions, involuntary responses like stress, inner tension, and emotional experiences can also be measured through EMG as tonic activity. This makes electromyographic biofeedback a vital method for monitoring and managing both muscular and psychophysiological states. The biofeedback training provided by the eSense Muscle can help individuals improve relaxation, reduce stress-induced muscle tension, and enhance rehabilitation processes. 

By observing the interplay between the autonomic and somatic nervous systems, EMG can provide insights into the body’s stress responses. Increased muscle tone often results from heightened sympathetic activity, while decreased muscle tension reflects stronger parasympathetic activation. This balance is key in promoting muscle relaxation and supporting effective rehabilitation. 

 

YouTube video

YouTube video

 

Scope of delivery of the eSense Muscle Pro Edition:

  • Mindfield® eSense Muscle Sensor incl. 1600mAh lithium polymer battery for approx. 12 hours of continuous operation
  • Clip to fixate the sensor unit at the clothing
  • Electrode cable set for connecting up to 5 electrodes
  • USB-C charging cable and charger
  • Bluetooth® dongle for Windows, if your PC does not have Bluetooth® (please refer to the enclosed instructions)
  • 50 pieces of EMG surface electrodes
  • 50 pieces of alcohol swabs for cleaning the skin
  • eSense Muscle Web App from Mindfield, available at www.esense-muscle.com
  • Detailed instructions for effective biofeedback training.

YouTube video

Details Pro Edition

  • One and two channels are available
  • The bandpasses are freely selectable (20-950 Hz, 20-300 Hz and 100-200 Hz)
  • All 1-channel and also 2-channel animations are available
  • All games are available in the Pro Edition
  • On the highscore page, all points from the games and animations are also visible on a global list of all Pro Edition users (optional).
  • An oscilloscope with functions such as a long-term history, storage and drawing mode is available
  • A contraction practice mode is available
  • Storage and display of the raw data of all measurements is possible
  • The web app and the mobile app are available

YouTube video

Apple, iPhone, iPad, iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. | IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under licence. | Android is a trademark of Google LLC | The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Mindfield Biosystems Ltd. is under license. Other trademarks and trade names are those of their respective owners.

The EMG signal for Biofeedback Techniques

With EMG, we measure a voltage curve over time, focusing on both the amplitude (the magnitude) of the signal and its frequency. Depending on the neuromuscular structure, significant differences can be observed. For instance, an EMG signal from a small muscle, such as a finger, will have a lower amplitude and frequency compared to the signal from a large thigh muscle. This data is particularly useful in physiotherapy and biofeedback training for tracking muscle performance and recovery. 

The eSense Muscle device can measure the raw EMG signal and transmit it via Bluetooth®, along with three preset bandpass signals (RMS) in the frequency ranges: 

  • 20 Hz to 950 Hz 
  • 20 Hz to 300 Hz 
  • 100 Hz to 200 Hz 

These frequency ranges can be selected and monitored via the eSense web and mobile apps. In biofeedback training, the bandpass RMS signals are used exclusively, as they are directly related to muscle force and amplitude, which is vital for optimizing neuromuscular control and stimulation during training and rehabilitation. The amplitude typically ranges from a few µV (millionths of a volt) to several hundred µV in particularly strong muscles. 

The frequency range of the EMG signal does not play a critical role in EMG biofeedback, but it helps emphasize the signal components you want to observe. EMG activity has a broad frequency spectrum, from 10 Hz to 500 Hz, with a focus between 25-300 Hz. A wide filter (20-950 Hz) captures all EMG components, while a narrow filter (100-200 Hz) isolates key signals, filtering out potential interference like pulse artifacts or electrical noise. 

Recent systematic reviews have demonstrated the efficacy of EMG-based biofeedback training for improving neuromuscular function and aiding recovery, particularly in physiotherapy settings. The precise feedback offered by the eSense Muscle makes it an effective tool for enhancing muscle performance and stimulation during rehabilitation. 

 

 

Quick User Guide

  • The complete manual can be found on our website www.mindfield.de under “Biofeedback” => “Products” => “eSense” => “eSense Muscle”. You can also find a demo video on our website. A short instructions comes with the eSense Muscle as well.
  • Take the electrode cable set from the package. Five electrode cables are included. In black, white, yellow, red and green.
  • The yellow electrode cable is the ground / earthing electrode!
  • For a 1-channel measurement, please use the electrodes black (channel 1+), white (channel 1-) and yellow (grounding).
  • For a 2-channel measurement, please use the electrodes black (channel 1+), white (channel 1-), yellow (grounding), red (channel 2+) and green (channel 2-).

Technical details

  • 2-channel EMG biofeedback device
  • Bluetooth® 5.0 transmission to PC or smartphone / tablet (Android and iOS)
  • Built-in Li-Ion battery 1600mAh for up to 12 hours of uninterrupted operation
  • 2 bipolar EMG inputs (CH1 +, CH1-, CH2 +, CH2-), 1 x analog ground
  • 2 multifunction buttons for operating the device
  • 1 RGB LED to display the operating status
  • 24 bit ADC and preamplifier for each channel, native sampling with 2 kHz per channel
  • 3 Bandpass filter (Bessel, 8th order) per channel. -3dB. Limit frequencies: BP1: 20..950Hz, BP2: 20..300Hz, BP3: 100..200Hz
  • RMS calculation and moving average over 0.5 seconds. Decimation to 100 RMS samples per second
  • 200mV differential measuring range per channel
  • 0.024 μV ADC Resolution per LSB
  • < 1.7 μV RMS Noise BP1
  • < 1.3 μV RMS Noise BP2
  • < 0.8 μV RMS Noise BP3
  • Channel 1 and 2 CMRR at 50Hz and 60Hz: better -105dB
  • Protection against electrostatic discharges (ESD) up to + -15kV according to the “Human Body Model”, IEC 1000-4-2, Air-Gap Discharge
  • HF-Filter
  • Operating mode: continuous operation
  • Measurement accuracy EMG amplifier / ADC, amplification: ± 5% basic accuracy, ± 0.2% after calibration, bandpass lower and upper limit frequency: ± 0.1%, sampling frequency: better than ± 0.1% (Resonator)
  • Operating range: 5-40 ° C, <= 95% relative humidity

 

Engineered in Germany

The eSense is completely engineered at Mindfield in Germany.

Product safety

Manufacturer information

Hindenburgring 4
D-48599 Gronau
Germany

Person responsible for the EU

Niko Rockensüß

Product safety documents

Who is the eSense suitable for?

  • for private users / home users
  • for professional users (biofeedback trainer)

Mindfield eSense Web App for Windows, Mac and Linux

The eSense Muscle is being delivered with new software for the first time, a web app that runs exclusively in a browser.

You don’t need to install any software. All you need is:

  • A PC / notebook with: Windows 10, Mac or Linux
  • A functioning Bluetooth® connection on this PC / notebook, Bluetooth® must therefore be available and usable.
  • A browser that supports “Web Bluetooth®” so that you can connect to our eSense Muscle via Bluetooth®. As of April 2021, these are Google Chrome, Microsoft Edge and Opera

We recommend to use the latest version of Google Chrome. Mozilla Firefox and Apples Safari are NOT supported.

So if you have a computer with Bluetooth® and one of the browsers mentioned, please go to the website: https://www.esense-muscle.com

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